NBC video stillHoward Stern appears as a judge on NBC's "America's Got Talent" in a promo video for the show's seventh season, premiering May 14.

Radio shock jock Howard Stern kicks off his new role as a judge on "America's Got Talent" next week, but one group doesn't want to see it happen.

In a letter obtained by TMZ, the Parents Television Council asked all of the NBC's shows sponsors -- 91 advertisers in all -- to boycott "AGT" and pull their ads from the program. The group is threatening to cut ties with advertisers who don't yank their money away because, according to the PTC, Stern will corrupt America's children.

As an example of Stern's "reputation for sleaze and misogyny," the PTC quoted Stern's crude comments on former "American Idol" winner Fantasia Barrino. When he was rumored to be replacing Simon Cowell on the Fox singing competition in 2010, he said on his SiriusXM radio show that Barrino wasn't turning "little boys" on, saying young male audiences would rather watch "a Britney Spears or a Rihanna."

According to Zap2It, the letter also criticized Stern's qualifications to be a talent judge: "To our knowledge, his only previous judging experience consisted of looking at insecure, naked young women and telling them whether or not they were hot enough to pose for Playboy."

Gather points out that the PTC ran similar campaigns against MTV's "Skins" and NBC's "The Playboy Club," which were both canceled. The racy teen drama "Skins" ran for a full season while the similarly controversial "The Playboy Club" was axed after just three episodes, though its unclear how much the council's ire factored into the decisions as both shows struggled in ratings.

While "AGT" has yet to air with Stern in a judge's chair, the self-proclaimed King of All Media proved he's still good for a racy quote during prime time TV. In a video promo for the new season's premiere, he tells four busty, bikini-clad dancers: "At least if your implants had exploded, we would have had excitement!"

Stern is replacing Piers Morgan, who was on the judging panel for the show's previous six seasons and left to focus on his work with CNN. Stern joins the highly-rated summer competition's current judges Sharon Osbourne and Howie Mandel, plus Nick Cannon.

The seventh season of "America's Got Talent" premieres Monday, May 14 at 8 p.m. on NBC.